How to Start LiFi Projects Using NS3

To start the Light Fidelity (LiFi) in NS3 that is a technology for high-speed wireless interaction to utilize visible light rather than radio frequencies. Although NS3 doesn’t have a dedicated LiFi module then we can replicate some of LiFi properties to use custom sets up, changes, and to incorporate with more modules. Let’s see how to start a LiFi project using NS3:

Steps to Start LiFi Projects in NS3

Step 1: Set Up NS3 Environment

  1. Download and Install NS3:
    • From the official website, we download NS3, and install it including any essential dependencies.
    • We check the installation to making sure that NS3 is properly functioning.
  2. Evaluate Existing Modules for LiFi Simulation:
    • Although NS3 doesn’t have a direct LiFi module then we utilize existing modules such as Wi-Fi or LTE like a basis, to modify them simulating some LiFi properties like high data rates and restricted coverage.
    • Seek any open-source extensions or third-party LiFi modules compatible along with NS3, if obtainable.

Step 2: Understand Key Characteristics of LiFi

  1. Line-of-Sight (LoS) Requirement:
    • LiFi normally needs a line-of-sight connection among the transmitter (LED) and receiver (photodiode).
    • Connectivity can be disrupted if the LoS is prevented that is from Wi-Fi or LTE.
  2. Limited Range and Coverage:
    • LiFi functions across short distances that frequently restricted to the area elucidated by a light source.
    • Coverage is smaller and more accurate that equated to Wi-Fi, which can be replicated by means of restricting the transmission power and to modify node placement.
  3. High Data Rate:
    • LiFi offers high data rates which is frequently calculated in Gbps, thus consequently configure the link metrics.

Step 3: Define Project Objectives and Metrics

  1. Set Key Goals for Your LiFi Project:
    • For LiFi project, general goals contain:
      • High-Speed Data Transmission: Replicate the high data rates LiFi can be attained.
      • Coverage and Connectivity: Design line-of-sight constraints and then examine the coverage limitations.
      • Mobility and Handover: Experiment how mobility impacts the connectivity and how handovers happen once users travel among the light sources.
  2. Choose Relevant Metrics:
    • For LiFi projects, crucial related parameters such as:
      • Throughput: Estimate the data transmission speed.
      • Latency: For high-speed data transmission, discover delay.
      • Coverage Area: Replicate and examine how coverage modifies with location.
      • Handover Delay: We compute the delays or interruptions within connectivity since users travel among the coverage areas.

Step 4: Set Up Network Topology and Nodes

  1. Define LiFi Transmitters (LEDs):
    • Signify LiFi transmitters (LED lights) to utilize NS3 nodes.
    • Configure each node to contain a restricted range to signify the coverage area of the LED.
    • Modify transmission power and antenna model, replicating the directional coverage and short-range operation normal for LiFi.
  2. Define LiFi Receivers (Devices):
    • Utilize nodes set up, denote the LiFi receivers associating depends on the proximity to neighbouring transmitters (LEDs).
    • Set nodes to link only in the range and direction of the LED source, to replicate the line-of-sight need.
  3. Set Up Communication Links:
    • For interaction, we utilize Wi-Fi or LTE modules like a basis. Set these links designing high-speed data transmission and to modify transmission range to restrict the connectivity range.

Step 5: Simulate Line-of-Sight and Coverage

  1. Limit Coverage Based on LoS:
    • According to the distance and obstacles, we describe the signal loss utilising NS3’s PropagationLossModel that can be simulated the impact of losing LoS.
    • If we need to replicate the obstacles to impact the line-of-sight utilising an Obstacle Shadowing Model or make a custom model.
  2. Define Range for Each Light Source:
    • Configure diverse transmission powers or ranges to signify diverse coverage areas for each transmitter node.
    • Limit the coverage to certain areas to utilize directional antennas or custom settings.

Step 6: Implement LiFi-Specific Features

  1. Simulate High-Speed Data Transmission:
    • In the interaction module, configure the data rates signifying high-speed links like 1 Gbps or higher.
    • Set applications, which need high throughput like video streaming or large file transfers, to experiment the capabilities of LiFi.
  2. Mobility and Handover Management:
    • Replicate movement of receivers such as users moving with mobile devices to utilize mobility models.
    • Execute the handover logic in which a node changes from one transmitter to another since it travels in and beyond the coverage areas.
    • During handover, we monitor the handover delays and any temporary loss within connectivity.

Step 7: Set Up Traffic Patterns for LiFi Applications

  1. Configure Application Layer Traffic:
    • Replicate the applications, which use high data rates like HD video streaming, real-time data transfer, or large file downloads.
    • For high-throughput data transfer utilizes UDP to reduce the latency, or TCP if we need to replicate the reliable connections.
  2. Test Different Traffic Scenarios:
    • Mimic diverse traffic loads and then examine how LiFi manages the high demand, interruptions by reason of mobility, and handovers among the coverage areas.

Step 8: Run Simulations and Collect Data

  1. Define Test Scenarios:
    • Make diverse situation, like:
      • Static Setup: Experiment the throughput and latency within a static configuration with a single LED source.
      • Dynamic Mobility: Experiment the impact of mobility by traveling nodes in and beyond the coverage areas.
      • High-Density Setup: We replicate a situation along with several LED sources and numerous users to monitor the handover management and throughput.
  2. Collect Performance Metrics:
    • Accumulate performance parameters such as latency, throughput, handover delays, and packet delivery ratio utilising NS3’s tracing and logging tools.
    • During handovers, estimate the connectivity duration and packet loss and compute the influence of mobility on throughput and latency.

Step 9: Optimize and Experiment Further

  1. Optimize Handover Mechanisms:
    • Test with handover thresholds like switching once signal strength falls under a particular level or when inserting a new LED coverage area.
    • Then, experiment various mobility speeds to monitor how they affect the handover delays.
  2. Advanced LiFi Features (Optional):
    • Multihop LiFi Communication: Experiment situations in which users associate via several LEDs.
    • LiFi-WiFi Hybrid Setup: Incorporate Wi-Fi or LTE like a fallback mechanism for cases once a user drops the connectivity of LiFi.
    • Security Mechanisms: In LiFi networks, replicate the secure data transmission among LED sources and users to discover the data confidentiality.
  3. Experiment with Additional Applications:
    • Experiment other applications like IoT device data transfer, indoor navigation, or augmented reality (AR), monitoring how LiFi manages different data needs.

Here, you can get to know more about the LiFi projects and how to execute and estimate the Light Fidelity (LiFi) using NS3 tool through provided detailed guide. If needed, we will offer further enhancements of this project.

Kick off your LiFi projects with NS3! Here at phdprojects.org, we’re all about helping scholars achieve greatness. Send us your project details, and we’ll make sure you get the best setup possible. Let us handle your project performance!